阅读说明：本技术 一种高拉伸塑料装饰件的高效成型工艺 (Efficient molding process of high-tensile plastic decorating part ) 是由 金哲 于 2019-11-19 设计创作，主要内容包括：本发明涉及塑胶成型技术领域,具体涉及一种高拉伸塑料装饰件的高效成型工艺。一种高拉伸塑料装饰件的高效成型工艺,至少包括以下工艺流程：(1)片材制作：模具A用于片材的制作；(2)片材成型：模具B用于片材的成型；(3)片材注塑：模具C用于片材注塑成型装饰件。本发明塑料装饰件的成型工艺制得的产品厚度可调,具有高拉伸性。该方法无需作业人员手动参与装饰壳转印工序,减少模切装置瞬时高温能耗,节约片材,不仅提升装饰壳转印的生产效率,降低作业人员劳动强度,降低生产成本,避免因作业人员手动作业及膜片温度不均匀带来的不确定性,提高装饰件的转印质量。(The invention relates to the technical field of plastic molding, in particular to an efficient molding process of a high-tensile plastic decoration. An efficient molding process of a high-tensile plastic decorating part at least comprises the following process flows of: (1) sheet preparation: the die A is used for manufacturing the sheet; (2) sheet forming: the die B is used for forming the sheet; (3) sheet injection molding: the mold C is used for sheet injection molding of a decorative part. The product prepared by the molding process of the plastic decorating part has adjustable thickness and high stretchability. According to the method, an operator does not need to manually participate in the decoration shell transfer printing process, instantaneous high-temperature energy consumption of the die cutting device is reduced, sheets are saved, the production efficiency of decoration shell transfer printing is improved, the labor intensity of the operator is reduced, the production cost is reduced, uncertainty caused by manual operation of the operator and uneven temperature of the membrane is avoided, and the transfer printing quality of the decoration is improved.)

1. The high-efficiency forming process of the high-tensile plastic decorating part is characterized by at least comprising the following process flows of:

(1) sheet preparation: the die A is used for manufacturing the sheet;

(2) sheet forming: the die B is used for forming the sheet;

(3) sheet injection molding: the mold C is used for sheet injection molding of a decorative part.

2. The molding process according to claim 1, wherein in step (1), the sheet produced by the mold a is a planar sheet comprising a support layer and a decorative layer.

3. The molding process according to claim 2, wherein the carrier layer has a thickness of 0.1 to 30 mm.

4. The molding process according to claim 2, wherein the decorative layer has a thickness of 5 to 100 μm.

5. The molding process according to claim 1, wherein in step (1), after the sheet material is completely manufactured, the sheet material transfer is further included.

6. The molding process according to claim 1, wherein in the step (2), the mold B has a temperature adjusting function; the temperature of the die B is similar to that of the sheet prepared in the step (1).

7. The forming process according to claim 1, wherein in the step (2), after the sheet is formed, the sheet cutting is further included.

8. The molding process according to claim 1, wherein in the step (3), the front mold of the mold C is shaped to match the shape of the sheet obtained in the step (2).

9. A high tensile plastic decorative item produced by a molding process according to any one of claims 1 to 8.

10. Use of a decorative product according to claim 9 for surface decoration of plastic parts.

Technical Field

The invention relates to the technical field of design and manufacture of plastic decorating parts, in particular to an efficient forming process of a high-tensile plastic decorating part.

Background

The general plastic decoration molding process includes: flat printing-embossing (die cutting) -injection molding-forming. In order to seek the beauty of the parts, the decoration requirements are increasing, and various patterns need to be transferred on the decoration shell. In the prior art, the heat transfer printing technology is developed mature and is mostly applied to full-area decoration. The comprehensive application of the insert injection molding and the in-film decoration technology can reduce the production cost and improve the transfer printing effect to a certain extent. However, in the actual production and manufacturing process, operators complete operation among a plurality of working procedures, the production efficiency is low, the quality stability is poor, the energy consumption is high, and the waste of sheets is large.

In order to overcome the defects and shortcomings in the prior art, the invention provides an efficient forming method of a stretched plastic decorating part. According to the method, an operator does not need to manually participate in the decoration transfer printing process, instantaneous high-temperature energy consumption of the die cutting device is reduced, the production efficiency of decoration transfer printing is improved, the labor intensity of the operator is reduced, the production cost is reduced, uncertainty caused by manual operation of the operator and uneven temperature of the diaphragm is avoided, and the transfer printing quality of the decoration is improved.

Disclosure of Invention

In order to achieve the above object, a first aspect of the present invention provides a high-efficiency molding process for a high-stretch plastic decoration, which at least comprises the following process flows:

(1) sheet preparation: the die A is used for manufacturing the sheet;

(2) sheet forming: the die B is used for forming the sheet;

(3) sheet injection molding: the mold C is used for sheet injection molding of a decorative part.

As a preferred technical solution of the present invention, in the step (1), the sheet produced by the mold a is a planar sheet, and includes a support layer and a decorative layer.

In a preferred embodiment of the invention, the support layer has a thickness of 0.1 to 30 mm.

As a preferable technical scheme of the invention, the thickness of the decorative layer is 5-100 μm.

As a preferable technical solution of the present invention, in the step (1), after the sheet is manufactured, the sheet transferring is further included.

As a preferable technical solution of the present invention, in the step (2), the mold B has a temperature adjustment function; the temperature of the die B is similar to that of the sheet prepared in the step (1).

As a preferable technical solution of the present invention, in the step (2), after the sheet is formed, the sheet cutting is further included.

In a preferred embodiment of the present invention, in the step (3), the shape of the front mold of the mold C matches the shape of the sheet obtained in the step (2).

A second aspect of the invention provides a high tensile plastic decorative item produced by a molding process as described above.

The third aspect of the invention provides the application of the decorative product, which can be applied to the surface modification of plastic parts.

Has the advantages that: the invention provides an efficient molding process of a high-tensile plastic decorating part. According to the method, an operator does not need to manually participate in the decoration piece transfer printing process, instantaneous high-temperature energy consumption of the die cutting device is reduced, the production efficiency of decoration shell transfer printing is improved, the labor intensity of the operator is reduced, the production cost is reduced, uncertainty caused by manual operation of the operator and uneven temperature of the membrane is avoided, and the transfer printing quality of the decoration piece is improved.

Drawings

Fig. 1 is a schematic view of a decorative sheet.

Fig. 2 is a schematic structural view of a plastic ornament provided in embodiment 1 of the present invention.

Detailed Description

The disclosure may be understood more readily by reference to the following detailed description of preferred embodiments of the invention and the examples included therein. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the present specification, including definitions, will control.

In order to solve the technical problems, the first aspect of the invention provides an efficient molding process of a high-tensile plastic decorating part, which at least comprises the following process flows:

(1) sheet preparation: the die A is used for manufacturing the sheet;

(2) sheet forming: the die B is used for forming the sheet;

(3) sheet injection molding: the mold C is used for sheet injection molding of a decorative part.

Sheet production

In the present invention, the sheet is made by the mold a.

The manufacturing method of the sheet comprises the following steps: and (3) putting the IMR film and the plastic material into the mold A, and curing to obtain the plastic film.

As a preferable plastic material, there is no particular limitation, and acrylonitrile-butadiene-styrene copolymer, polystyrene, polypropylene, polyethylene, polycarbonate, polybutylene terephthalate, polyvinyl chloride, polyethylene terephthalate, ethylene-vinyl acetate copolymer, nylon, polymethyl methacrylate, and the like can be mentioned.

Preferably, the temperature and other parameter settings of the mold a during the sheet manufacturing process depend on the plastic material.

In the invention, the sheet prepared by the mould A is a plane sheet and comprises a carrier layer and a decorative layer.

In the invention, the thickness of the carrier layer is 0.1-30 mm.

Preferably, the support layer has a thickness of 0.2 to 10 mm.

In the invention, the thickness of the decorative layer is 5-100 μm.

Preferably, the decorative layer has a thickness of 10 to 80 μm.

In the invention, in the step (1), after the sheet is manufactured, the sheet transfer is further included.

The sheet material transfer means that a protective film, such as PET paper, on the surface of the sheet material is torn off.

Sheet forming

In the invention, the sheet molding refers to that the sheet prepared in the step (1) is subjected to compression molding by a mold B to obtain the sheet.

In the invention, the die B has a temperature adjusting function; the temperature of the die B is similar to that of the sheet prepared in the step (1).

The inventor thinks that the mould B with the temperature adjusting function can effectively reduce high-temperature energy consumption, save sheets, improve the production efficiency of sheet forming, reduce the production cost, avoid uncertainty caused by manual operation of operators and uneven temperature of the membrane and improve the transfer printing quality of the decorating part.

In the present invention, in the step (2), after the sheet is formed, the sheet cutting is further included.

The sheet shearing means that waste material shearing is carried out on the formed sheet to obtain the sheet with a certain shape, and the using amount of the sheet in the sheet injection molding decoration piece can be saved.

Sheet injection molding

In the invention, in the step (3), the shape of the front mold of the mold C is matched with the shape of the sheet prepared in the step (2). And (3) placing the formed sheet prepared in the step (2) into a mold C, and performing injection molding on the formed sheet to form a decorative part.

Preferably, the material of the injection molding is not particularly limited, and acrylonitrile-butadiene-styrene copolymer, polystyrene, polypropylene, polyethylene, polycarbonate, polybutylene terephthalate, polyvinyl chloride, polyethylene terephthalate, ethylene-vinyl acetate copolymer, nylon, polymethyl methacrylate, and the like can be mentioned.

As a preference, the method of the injection molding is not particularly limited, and compression molding, injection molding, extrusion molding, blow molding, calendering, lamination and the like can be mentioned.

The temperature and other parameter settings of the injection mold C depend on the material used for injection molding.

A second aspect of the invention provides a high tensile plastic decorative item produced according to the molding process described above.

The third aspect of the invention provides the application of the decorative product, which can be applied to the surface modification of plastic parts.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.